New System to Measure Motion Motion-to-Photon Latency of Virtual Reality Head Mounted Display

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PubDate: January 2020

Teams: Beijing Institute of Technoloqy

Writers: Hang Xun; Yongtian Wang; Dongdong Weng

PDF: New System to Measure Motion Motion-to-Photon Latency of Virtual Reality Head Mounted Display

Abstract

Head mounted display (HMD) is an important part of the virtual reality (VR) system and the main interface of virtual world. During the process of using HMD, there is a certain time gap between the user’s movement and the triggered change of display, which is referred to herein as a ” Motion-to- Photon ” latency. The latency may cause cybersickness which has an adverse effect on user experience and even physical health, so it is necessary to evaluate the latency of an HMD. We propose an automated and universal HMD latency measurement system. By simulating a user’s motion, we are able to measure “Motion-to-Photon” latency using the generated periodic signals in HMD, with accuracy and reliability confirmed by our experiments. The system is fully automatic and easy to use, and suitable for the HMD with inside-out or outside-in positioning methods. It helps to improve both the detection level of existing HMDs and the user experience. It is of guiding significance for the design and manufacture of new HMD.

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